One thing that bothers me is when ppl critique my data as "unscientific" due to sampling bias. First, y'all better not look into a lot of what you think are "scientific" studies Second, there's nothing wrong with sampling bias if you acknowledge limitations and don't extrapolate.
This would incentivize ppl to say yes for the $10 without being accurate on the test, would select for ppl who need $10 more. You wouldn't get any busy right people. There's no way to remove "motivation to answer the question" from answers to the questions.
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*rich people
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The difference is that the bias of paid surveys is well understood - it excludes rich people, yes. Also many studies are done on college students, and it is a somewhat well-understood and meaningful demographic. If you use internet volunteers, however, you don't understand the
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